NAD T 187 Service Manual page 48

TRIGGER BOARD
D2308
N.I. FOR CE
D2308
CM1213-08MS
+5V_K
1 10
2
9
5 8
3
7
M2307
N.I. FOR CE 4 6
+5V_OUT
DGND
M2307
XM CONNECTOR
1
2
3
4 DGND
DGND
+5V_OUT
M2306
PIN 7 IS GOING TO DAB MODULE PIN 15 (S1_DIN).
N.I.
PIN 4 IS FROM DAB MODULE PIN 16 (S1_DOUT).
8
7 DAB_TXD
4 DAB_RXD
3 DAB_IN
1 +5V_OUT
2 +5V_OUT
5
6
DGND
9
DGND
M2306
DAB CONNECTOR FOR CE
M2305
R2320
47
C2318
1
1u
50V
2
3
4
R2354 C2319
5
1u
50V
6 22
7
8
C2321 C2322 C2323 R2321
9 N.I. N.I. N.I.
47
50V 50V 50V C2320
1u
50V
CHGND CHGND CHGND
DGND DGND
+5V_K
Q2320
DTA114EKA
R2303
2.2k
C2301
0.01u
DGND
M2303-B C
IR IN
Q2321
1_5 B B
DTC114EKA
SW
R2302
N.I.
E
1_1
DGND
DGND
CHGND_JACK
D2309
+5V_K
5.1V R2361
1/2W
47k
DGND DGND
R2360
R2308
150
+5V_K
10k
1W
R2310
100k
Q2308
5
DTC114EKA
C
4
R2309
B
2
M2311
33k
3
TRIGGER IN C2305
NC
0.1u
E
50V
1
DGND DGND
CHGND_JACK
TRIG_IN
X2351 R2359
M2411
N.I. 100
R2358
100
DGND
CHGND_JACK
CHGND
N.I. FOR T187
+5V_K
SOFT CLIPPING SWITCH
+5V_K
C2324
1u
50V R2323 R2324
1 C1+ VCC 16 10k
C2325 1.8k
ON
10u 1
3
2 V+ GND 15 16V OFF
5
S2301-A
3 14
C1- T1_OUT
ON
2
4
OFF
6
4 C2+ R1_IN 13
S2301-B
5 12
C2- RI_OUT
6 V- T1_IN 11
DGND
7 10
T2_OUT T2_IN
8 R2_IN R2_OUT 9
DGND
U2301
ST232BDR
+5V_K
R2304
10k
+12V_D
Q2302
M2303-A
C M2304-A
DTA114EKA
IR OUT 1 IR OUT 2
R2305
Q2301
2_5 2_5
DTC114EKA
560
C2302
47p
E 50V
2_1 2_1
C
DGND DGND
B
IR_O_1
IR_IN
E
Q2303
DTC114EKA
CHGND_JACK
DGND
Q2309 +12V_D
M2308 M2309
2SB1275
TRIGGER OUT 1 TRIGGER OUT 2
R2311 L2303 R2312
2
3.3 1W 15uH 3.3 1W
C2306 R2344
3 0.1u 10k
D2301 D2302
50V
1
LL4148 LL4148
DGND
R2313
10k
DGND
C
CHGND_JACK
B
Q2310
DTC114EKA
E
DGND
+5.3V +5V_V
U2302
R2356 R2357
TPS2011A
0 N.I.
1 8
GND OUT8
2 7
IN2 OUT7
3 6
IN3 OUT6
4 EN OUT5 5
C2329
10u
16V
C2326 C2327
0.1u 0.1u
50V 50V
DGND DGND DGND DGND
+12V_D
Q2304
Q2306
M2304-B
DTA114EKA DTA114EKA
IR OUT 3
R2306 R2307
1_5
560 SW 560
C2303 C2304
47p 47p
50V
50V
1_1
C C
DGND DGND
B
IR_O_2
E E
Q2305
DTC114EKA
CHGND_JACK CHGND_JACK
DGND DGND
Q2311 +12V_D
M2310
2SB1275
R2314 R2315 TRIGGER OUT 3
L2302 R2317 L2301
2 2
R2346
3.3 1W 15uH C2307 R2345 3.3 1W 3.3 1W 15uH C2308
0.1u 10k 0.1u 10k
3 3 50V
50V D2303 D2304
1 1
LL4148 LL4148
DGND DGND
R2316
10k
DGND DGND
C
CHGND_JACK
CHGND_JACK
B
TRIG_OUT_2
TRIG_OUT_1
Q2312
DTC114EKA
E
DGND
48
+3.3V
+3.3V
R2347
N.I.
DAB_TXD
R2329
C
N.I.
R2331 R2332
Q2316
B 0 0
N.I.
C
E
Q2317
B
N.I.
DGND
E
DGND
+5V_V
Q2316, Q2317, Q2318, Q2319
DTC114EKA FOR CE
+5V_V R2348
N.I.
R2329, R2347, R2348
4.7k FOR CE
C
R2330
N.I. R2330
Q2319
B
1k FOR CE
N.I.
C
R2331, R2332
E
Q2318 N.I. FOR CE
B
N.I.
DAB_RXD
DGND
E
DGND
+5V_K
C2314 +5V_K
C2315
10u
U2303 16V 0.1u
50V
SN74HC86DT
R2339
1 14
1A VCC DGND 0
+12V_D
2 1B 4B 13
3 12 R2340
1Y 4A
N.I.
R2341
4 2A 4Y 11
15k DGND
5 10
2B 3B
6 2Y 3A 9
B
IR_R
7 8
GND 3Y
R2351
10k
Q2307
DTC114EKA
DGND
C2317 C2316
100p 10u
50V 16V
DGND DGND DGND
Q2313 +12V_D
2SB1275
R2318
3.3 1W
D2305 D2306
TRIG_OUT_3
LL4148 LL4148
R2319
10k
C
B
Q2314
DTC114EKA
E
DGND
+5V_V +5.3V +12V_D +5V_K
J2301A
To Conn#2 J2301B
DAB_TXD_5V 1
DAB_RXD_5V 2
DAB_IN 3
SC_1
4
SC_2 5
S_CLIP_IND 6
AUTO/OFF 7
232_TXD 8
232_RXD
9
IR_O_1 10
IR_O_2 11
DAB/XM_PWR 12
IR_R_MIX 13
TRIG_IN 14
TRIG_OUT_1 15
TRIG_OUT_2 16
TRIG_OUT_3 17
DGND 18
+5V_K 19
+12V_D 20
IR_R 21
+5.3V 22
+5V_V 23
24
25
26
C2330 C2328
N.I. 10u
16V 16V
DGND DGND DGND
C2330
10u/16V FOR CE
D2307
+5V_V N.I. +3.3V
U2304
N.I.
IN OUT
C2311 C2310 C2309
N.I. N.I. N.I.
16V 50V 16V
DGND
U2304 C2311
LM1117S 3.3V FOR CE 47u/16V FOR CE
D2307
LL4148 FOR CE
C2309
10u/16V FOR CE
C2310
0.1u/50V FOR CE